![]() Matter and energy are conserved in chemical processes.The products of one process are the reactants for the other process and vice versa.Although they occur in different organelles, photosynthesis and cellular respiration are interdependent processes.In this process, sugar molecules combine with oxygen to release energy in a form that cells can more easily use.Cellular respiration occurs in the mitochondria of all cells (including plant cells).The sugar molecules produced from photosynthesis can be used immediately by plants and animals for energy, stored for later use, or rearranged into other compounds to carry out life processes.Chlorophyll aids in the energy transformation of sunlight (radiant energy) to chemical energy in sugar.Chloroplasts do this with the help of the pigment chlorophyll. ![]() Chloroplasts, organelles found in some plant cells, convert radiant energy from sunlight into chemical energy.The organelles, cells, tissues, organs, and organ systems of plants work as a system to obtain the raw materials (sunlight, water, and carbon dioxide) and produce the products (sugars and oxygen) in photosynthesis.Two organelles- chloroplasts and mitochondria-act as change agents within the cells of living things to make energy available for life processes.Sustaining life processes requires substantial energy and matter inputs.Producers are the foundation of virtually all food webs. No process is more important for life on Earth than photosynthesis.Photosynthesizing organisms, including green plants, algae, and phytoplankton, produce their own food (sugar), and are called producers.Some organisms obtain energy for life processes by storing energy from the sun in chemical bonds.The result of these chemical reactions is that energy is transferred from one system of interacting molecules to another.As matter and energy flow through different organizational levels of living systems, chemical elements are recombined to form different products. ![]()
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